Historical Data

Open-Close data is a volume summary file of trading activity on the BZX exchange that summarizes the volume (contracts traded) by origin (customer and firm orders only), original order size and the opening or closing position of the order. The Open-Close volume is further broken into categories of buy/sell, open/close and order size "buckets". The data currently goes back to 1/2/2018 and contains all series in an underlying security's chain-if it has volume.

Open-Close data is a volume summary file of trading activity on the Cboe C1 exchange (does not include activity from C2, BZX, or EDGEX) that summarizes the volume (contracts traded) by origin (customer and firm orders only), original order size and the opening or closing position of the order. The Open-Close volume is further broken into categories of buy/sell, open/close and order size "buckets". The data for all Cboe (C1) securities goes back to 1990 and contains all series in an underlying security's chain-if it has volume. The Open-Close data is available as a data download by individual underlying symbols, or as a daily update that includes all Cboe (C1) traded options for the previous trade day's data going forward, and as bulk data that includes all Cboe (C1) traded securities for the time frame chosen. Click here for Open-Close pricing.

Open-Close data is a volume summary file of trading activity on the C2 exchange that summarizes the volume (contracts traded) by origin (customer and firm orders only), original order size and the opening or closing position of the order. The Open-Close volume is further broken into categories of buy/sell, open/close and order size "buckets". The data currently goes back to 1/2/2018 and contains all series in an underlying security's chain-if it has volume.

Open-Close data is a volume summary file of trading activity on the EDGX exchange that summarizes the volume (contracts traded) by origin (customer and firm orders only), original order size and the opening or closing position of the order. The Open-Close volume is further broken into categories of buy/sell, open/close and order size "buckets". The data currently goes back to 1/2/2018 and contains all series in an underlying security's chain-if it has volume.

Optsum data is an end of day index option summary for CBOE traded options in ^SPX, ^OEX, and ^VIX with volume traded, open interest, open, high low and last sales prices for every series in chain. The Optsum data is available as far back as 1990 or based on the index option availability in ^SPX, ^OEX, and ^VIX. *For a similar product for all securities with equity and index options, please see the End-of-Day Option Quotes Data offering.

Options involve risk and are not suitable for all investors. Prior to buying or selling an option, a person must receive a copy of Characteristics and Risks of Standardized Options (ODD). Copies of the ODD are available from your broker or from The Options Clearing Corporation, One North Wacker Drive, Suite 500, Chicago, Illinois 60606. The information on this website is provided solely for general education and information purposes and therefore should not be considered complete, precise, or current. Many of the matters discussed are subject to detailed rules, regulations, and statutory provisions which should be referred to for additional detail and are subject to changes that may not be reflected in the website information. No statement within the website should be construed as a recommendation to buy or sell a security or to provide investment advice. The inclusion of non-Cboe advertisements on the website should not be construed as an endorsement or an indication of the value of any product, service, or website. The Terms and Conditions govern use of this website and use of this website will be deemed acceptance of those Terms and Conditions.